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ORDER TRACKING PLUG-IN ANALYZER

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SYNCHRONOUS ORDER ANALYSIS (SOA)

Order analysis and tracking make the most sense when the rotor speed is varying. Getting correct results from run-up/down requires specific signal processing techniques. The SOA plug-in takes benefit of the DSP powered OROS 3-Series analyzers to provide the best order analysis. Signal is resampled in function of the precise tachometer and then angular domain blocks are converted to the order domain. Using order spectra as input data, the plug-in extracts complex orders (phase and amplitude) from fast run-up/down. The setup of SOA does not require an experienced user; you will get the right results immediately.

Up to 40 kHz bandwidth real-time analysis
Time domain filters (A, C, Integrators)
Adjustable keyphasor phase (edge/order 1)
Order or angular domain averaging
1/32 nd order resolution

 
 


CONSTANT BAND ORDER TRACKING (CBT)

Gearboxes generate modulated and buried noise and vibrations orders, which are not easy to extract. The CBT helps engineers getting those orders with the appropriate spectral extraction. It is offered as an option of the FFT plug in.


 
 


Main features are:

SYNCHRONOUS ORDER ANALYSIS (SOA)

Type

Time domain re-sampling and interpolation function of tachometer
Span / Resolution Max order 6.25 to 400 - 1 to 1/32 order resolution
Tracked orders 1 to 8 independents orders tracked per channels
Tachometer Any valid tachometer (ext. sync, inputs, virtual)
Averaging Angular or order domain - overlap 1 to 31 rev.- linear, exponential, peak hold and ref peak hold modes
Weighting windows Hanning- Hamming - Kaiser Bessel - Uniform
Filters HP, LP - BP, BS - integrator (simple and double) - A and C laws - Independent on any channels
Capacity 8 or 32 channels plug-ins - 1 or 2 SOA plug-ins with independent setups and tachometer
Others Adjustable band (order) power tracking

 

CONSTANT BAND ORDER TRACKING (CBT)

Tracked orders

 1 to 8 independents orders tracked per channels - Adjustable frequency span
Tachometer Any valid tachometer (ext. sync, inputs, virtual)
Capacity 8 or 32 channels plug-ins - Up to 4 FFT plug-ins with independent setups
Others Order extraction centered on nearest peak (user selectable)